三道prep上的数学题，看不懂啊

cherryser

1.Which of  the following lists the number of points at which a circle can intersect a triangle? 2 and 6 only 2,4 and 6 only 1,2,3,6 only 1,2,3,4,6 only 1,2,3,4,6 这道题压根没看懂题意 2. Are at least 10 percent of the people in country X who are 35 years old or older employed?(1) In Country X, 11.3 percent of the population is 65 years old or older (2) In Country X, of the population 65 years old, 20 percent of the men and 10 percent of women are employed 我选了E，错误。 3. How many odd integers are greater than the integer X and less than the integer Y? (1) There are 12 even integers greater than X and less than Y (2) There are 24 integers greater than X and less than Y 我选了C， 错。

cherryser

是是，又粗心了，谢谢啦

liliannechang

E， 还有5个点的情况

cherryser

谢谢啊，第一题明白了。那应该选D吧，only的，不可能再有其他情况

了吧。
第三题也没说是连续的整数啊

ItalyPirlo

回复第一题和 第三题
1第一题的意思  该是一个圆可以与一个三角形有几个交点？ 应该1-6个都是有可能的
3题  第二个条件是充分的 因为连续的24个数奇偶是各占一半的
第三题也不太是读懂什么意思  希望对你有所帮助